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In an IEEE 802.16(d) (WiMAX) mesh network, network bandwidth can be managed by either the Centralized Scheduling (CS) mode or the Distributed Scheduling (DS) mode. Compared with the CS mode, the DS mode provides a larger bandwidth capacity and is more scalable. However, because the DS mode uses an on-demand three-way handshake procedure to establish data schedules, the network quality experienced by application programs may fluctuate drastically. To address this problem, in this paper, the authors propose three schemes to improve the data scheduling efficiency of the DS mode of the IEEE 802.16(d) mesh network.
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